There are actually three alleged lists of personalities being linked to the scam. One list was handed over by Napoles to de Lima, another list was given to former senator Panfilo Lacson by Napoles' husband while a third is allegedly in the hands of Whistleblowers Association of the Philippines president Sandra Cam.

Cam has refused to reveal the source of her list but warned that she will reveal all if she is pestered by government officials. Cam has asked the Supreme Court to stop alleged surveillance operations by government agents against her.

De Lima said she does not if the two other lists from Cam and Lacson match the one she has.

She reiterated that she will reveal the list but only after vetting the information. She said releasing the list prematurely, sans other evidence based on their own investigation, could raise more questions.

She said she doubts if lawmakers and other government officials linked to the corruption scandal would own up to their deeds.

Asked about rumors that members of the executive are being linked to Napoles, she said: "If there are names from the executive and it is validated during the vetting process, I have no choice but to say it also na mukhang totoo...But you should understand, I cannot confirm or deny that at this point."